25713321 has 16 divisors (see below), whose sum is σ = 35536320. Its totient is φ = 16527680.

The previous prime is 25713313. The next prime is 25713329. The reversal of 25713321 is 12331752.

It is an interprime number because it is at equal distance from previous prime (25713313) and next prime (25713329).

It is a cyclic number.

It is not a de Polignac number, because 25713321 - 2³ = 25713313 is a prime.

It is a super-2 number, since 2×25713321² = 1322349753698082, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 25713291 and 25713300.

It is not an unprimeable number, because it can be changed into a prime (25713329) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8011 + ... + 10751.

It is an arithmetic number, because the mean of its divisors is an integer number (2221020).

Almost surely, 2^25713321 is an apocalyptic number.

It is an amenable number.

25713321 is a deficient number, since it is larger than the sum of its proper divisors (9822999).

25713321 is a wasteful number, since it uses less digits than its factorization.

25713321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2856.

The product of its digits is 1260, while the sum is 24.

The square root of 25713321 is about 5070.8304053675. The cubic root of 25713321 is about 295.1567528504.

The spelling of 25713321 in words is "twenty-five million, seven hundred thirteen thousand, three hundred twenty-one".